Vehicle-wheel hub.



A. LI PULNAM,

VEHICLE WHEEL HUB.

APPLlcAraor: mm SEPTJ, mi

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(lum/nent 5 larger of the indicated at I, and

UNIIEDv STATES PATENT OFFICE.

.ALOEN L. PUTNAM, 0F DETROIT, MICHIGAN. ASSIGNOR TO DETROIT PRESSED STEEL COMPNY, 0F DETROIT, MICHIGAN. A CORPORATION OF MICHIGAN.

VEHICLE-WHEEL HUB.

Application flied september 7.8191?.

Be it known that I. .\Lo1:x L. lr'rxxxt. a eitizen of the lvnited Staten otl Anieriea. residing at Detroit. in the eounty of `l\'avne and `State ot' Michigan, have invented rertain new and uaeful Improvementa in le hide-theel Il ubs. ot' whieh the t'ollowinn' is a speeilit'ation. ret'erent'e being` had, therein to the aeeompairving drawings.

The invention relates to vehiele wheel hubs more part ieularlv designed for use in eonneetion with demountahle wheels. ln the present state ot the art it tretptently happens that the huhsd'or the front and rear wheelsl of the .'ehiele diti`er in diameter."

'lhus it is usual to have the hubs for the rear wheels of zLfreatelr diameter than those t'or the. front wheels. but in some instanees the reverse is true and thel hulls for the front wheela are of greater diameter than those for the rear wheels. lVhere demountablewvheels are used these are, attached and detached at the hub, and as the wheel must be interelntngeable, front and rear, it ia essential that ythe hubs should he ot' the same diameter. It is the ohjeet et' the present. invention to overcome this ditlieultv. whieh I have ateomplished b v providing' a hub formed with double walls. rl`he outer wall is of a diameter eorresponding to the wheel hubs and theinner wall eorresponds to the .smaller hub. Thus a demoimtable wheel ot' a size to tit. the maximuni :sized huh will also fit the, outer wall of my improved hul), while the i'nner wall thereof is adapted to reeeive the'srtnaller sized bearings.

ln thel drawings:

Figure 1 is a longitudinal a hub; l

Fig. 2 is an end elevation thereof.

A is a huh section preferablyv formed ot' pressed sheet-metal and havingT a c vlindrieal portion B for receiving the hearings a ud an outwardly-extending flange portion (l tor engagement with the demountable wheel. D is a huh, section also lorined ot pressed l heet-nietal and ha ving a evliudrieal portion E of greater diameter than the portion l and a flange, portion lt`. rlhe outer end of the portion E is eontratt'ed in diameter to lit upon the, portion l5. as indicated at (i. and in this portion and the portio' ll is a tapering portion ll. The flange t extendaol'iliquelv through the axis ot the huh` a has the portion J parat-- seotifn through Specification of Letters Patent.

.is hollow lzittnetl Fel). t8. 25H9. SeralNo. 190.260A

lel to the planeot rotationl whith liel ad liat-ent to the llang'e lf. 'l`he two aeetions areseenretl together in an v `uitahle way.I oeh as lrv .epotrweloine the (langes .l and l" at li. 'l`he.\e llantaare also provided with threaded aperture4 lJ through whieh the'elainpin.;r .--tud-: l'or the demountahle wheel pass. these A ervinf a a `further eouplinfr inean hetween the two stations.

ll'ith the eon trueion as tlest'rilled an exceedingly strong huh i l'ormed` as the outer and innei seetion` real-t to mutuall)v strengthen .and lu'aee eaeh other. t the same time a hearingr is provided for the det'nonitahle wheel. and the tart that the huh dimiuishe the weight ot' the ltrut-ture.

lVhat l elaini as nl v invention is:

l. A wheel-huh` eoinprisinpr outer and inner set'tion. l'fruied ot' pressed heet-nletal and having" t-vliinlrieal portions ot' different diameters pared l'rom earh other. one of aid sertions having a portion ot' a diameter to tit a rvlindriral portion ot' the other set-tion and hoth seetionshavingrtlaugfes whit-h hear against eaeh other.

'2. A\ '\'vheelhull. eomprising outer and inner seelions lornied oi' presaetl sheet-metal. the outer lnet-tion havin;lr a eylindrieal portion ol `greater diameter than that ot the inner e -tion and spared therefrom.,the outer end ot'- aid outer eetion hein;r oontrat'ted to lit upon the outer end ot' the inner set-tion. a llang'e extending.r outward from said outer seetion and a [lange on :said inner lwetion extending ohlitptely in eroswseetion from its point ot' merger with`the zylindrieal portion to its point ot' he.1rin`r on the flange ol' the outer sertion.

fl. A wheel-hub, eoinpriiingr a pair of preased dieet-metal` Set'tions eath havingr :l tvlindrieal portion and an oulvardl vex tending' (lautre. the tvlindrital portionl ot said y eetion l heine' ot` dill'erent diameter and pared trom eat-h other and the flange ol one having a portion ohlitpte to the flange of the other to t'orm n hrate therefor, and moana` for .wein-intr said na-tions to earlt` other.

l. .\,y wheel-huh. eompriaing a pair oi' er tion tormed ol pressed sheet-metal. the inner settiou having a evliiitli'it'tll portion, an ontwartll \'extendin; llangle oblique in erossseetion terminating in a portion parallel to the plane ol' rotation. the. outer seetion having.r a :'ylindrieal portion of greater 

